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Finding the Fourth Proportional to 443,683.60, 612,062.96 and 262,307.20

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Solution

The fourth proportional to 443,683.60, 612,062.96 and 262,307.20 is: 361,853.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,683.60 : 612,062.96 = 262,307.20 : x
  2. Step 2: Convert to fraction form
    443,683.60/612,062.96 = 262,307.20/x
  3. Step 3: Cross multiply
    443,683.60x = 612,062.96 × 262,307.20
  4. Step 4: Simplify right side
    443,683.60x = 160,548,521,261.31
  5. Step 5: Solve for x
    x = 160,548,521,261.31/443,683.60
  6. Step 6: Final answer
    x = 361,853.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.